NGC 7538 in Cepheus

on Tuesday, April 12, 2011

by Jase Jennings

Taken through LB-0001: 24-inch (0.61-meter) RC Optical Systems Ritchey-Chretien reflector at f/8.0 with ion-milled optics on an RC Optical Systems Professional Series Equatorial Fork Mount, Apogee Alta U42 CCD camera, Hydrogen-alpha/RGB image with 90-minute exposures through each filter

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